thyroid and other things. Is it safe to assume that, even if the doc isn't looking for it, she will find Oxycontin in my system? I had both knees replaced in Sept. and Nov. and if she finds it, I was going to say that I had some left over. I suffer from chronic pain and have had to resort to desperate measures to provide pain relief. Not sure how to handle this. Any help would be greatly appreciated. And I took my last pills today. Thanks in advance